JE Pistons 345627S Forged Dome Piston 2618 Alloy 3.406" Bore 0.827" Pin Single

The JE Pistons 345627S is a high-performance forged dome piston crafted from 2618 aluminum alloy, engineered for demanding racing and high-boost applications. With a 3.406-inch bore diameter, a 1.245-inch compression distance (CD), and a 0.827-inch pin diameter, this piston is precision-machined to exacting tolerances for maximum power output and long-term durability under extreme conditions.

Key Features:

• 2618 Forged Aluminum Alloy – A high-strength, heat-resistant alloy preferred for forced induction, nitrous, and all-out racing builds where thermal cycling and detonation resistance are critical
• Dome Profile – Designed to increase compression ratio, making this piston ideal for naturally aspirated performance or high-compression racing engine builds
• 3.406" Bore Diameter – Precision-sized for a proper fit and optimal ring seal
• 1.245" Compression Distance (CD) – The measured distance from the pin centerline to the top of the piston crown, enabling precise deck height tuning
• 0.827" Pin Diameter – Full-floating or press-fit wrist pin compatibility for strength and precise fitment
• In-House Forging – JE manufactures pistons in their own facility, ensuring consistent quality control from raw material to finished product

JE Pistons has been a leader in forged racing pistons for over 70 years, supplying professional motorsports teams across drag racing, road racing, circle track, and off-road disciplines. The 345627S is built to the same exacting standards trusted by championship-winning engine builders worldwide.